SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: mash on it on March 05, 2013, 09:13:37 AM

Title: Berk Pump specs?
Post by: mash on it on March 05, 2013, 09:13:37 AM

Looking for some Berk pump specs, Wear ring to impeller,( I.D & O.D. ) Whats new specs, serviceable specs, and plumb wore out? Also front to rear- impeller to wear ring, (shimming the impeller).
Not an all out race deal, just a heavy azz daycruiser pig.

Thanks

Daniel

Title: Re: Berk Pump specs?
Post by: 76NORDIC on March 05, 2013, 11:35:44 AM

Go on to CPperformances website, all the info will be there ;)

Title: Re: Berk Pump specs?
Post by: mash on it on March 05, 2013, 01:14:26 PM

Thanks 76NORDIC

This is all the Info they give reguarding the wear ring:


      The axial clearance between the impeller and the impeller shoulder must be 0.025” – 0.035” (check several places around the wear ring). Check again after the impeller nut has been tightened



This is exactly what I want to do. Is this .025" to .035" each side? Or total? How is this checked with the impeller in?

Or is this the front to rear clearance?

The impeller is out of round-- large dia.  7.268", small dia. 7.256, so it needs tu be turned. (avg ~7.262")

Wear ring, as measured OUT of the pump is out of round too-- Lg. Dia. 7.214", And small dia.  7.201.  (avg. ~7.206")

Using averages, theres .056" clearance, or .023" r-&-l.


Thanks

Daniel

Title: Re: Berk Pump specs?
Post by: uncleBOBBY on March 05, 2013, 04:38:10 PM

You can also go to americanturbine.com
There is a detailed diagram on pump rebuilds and gives it step by step.
Dominator jets are a direct replacement for a Berkley. " im pretty sure its basically the same format for a impeller replacement


Used my old iPhone 4

Title: Re: Berk Pump specs?
Post by: mash on it on March 05, 2013, 05:05:13 PM

Thanks uncleBOBBY-

Found the specs too, From A/T:


                           The clearance between the impeller
                           and wear ring is .012 per
                           side, .024 total. As the impeller
                           and wear ring wear this clearance
                           increases. Measure the Impeller
                           to fit with an undersized wear
                           ring. By doing this you can
                           bring the clearance back to the
                           original setting. Stock measurement
                           is 7.220 to 7.225


So, Its Double the Specs, Time to get a wear ring fo this season

Daniel

Title: Re: Berk Pump specs?
Post by: uncleBOBBY on March 05, 2013, 05:10:15 PM

Glad I could help out
Have fun and hope to see you on the water some day


Sent from my iPad using SoCalJetBoats mobile app

Title: Re: Berk Pump specs?
Post by: mash on it on March 05, 2013, 05:39:23 PM

Quote from: uncleBOBBY on March 05, 2013, 05:10:15 PM

Glad I could help out
Have fun and hope to see you on the water some day


Sent from my iPad using SoCalJetBoats mobile app

PARKER!!!

Title: Re: Berk Pump specs?
Post by: uncleBOBBY on March 05, 2013, 05:49:56 PM

Quote from: mash on it on March 05, 2013, 05:39:23 PM

PARKER!!!

Ill be there


Sent from my old ass iPhone 4
Using the SCJB mobil app